4-Hydroxybenzaldehyde → HCID 136203571, compound

HRID 1106104Notes

Reaction equation

HRID 1106104 reaction equation
[C:1]1([N:7]2[C:11](=[O:12])[CH2:10][C:9]([C:13]([OH:15])=[O:14])=[N:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[OH:16][C:17]1[CH:24]=[CH:23][C:20]([CH:21]=O)=[CH:19][CH:18]=1>CO>[C:1]1([N:7]2[C:11](=[O:12])[C:10](=[CH:21][C:20]3[CH:23]=[CH:24][C:17]([OH:16])=[CH:18][CH:19]=3)[C:9]([C:13]([OH:15])=[O:14])=[N:8]2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

4

Reactant 2

HCID 1264-HydroxybenzaldehydeHCID 670615-Oxo-1-phenyl-2-pyrazoline-3-carboxylic acid

Product 1

HCID 136203571HCID 136203571, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

204 g (1 mole) of 1-phenyl-3-carboxy-2-pyrazolin-5-one and 122 g (1 mole) of p-hydroxybenzaldehyde were dissolved in 1000 ml of methanol. After a few minutes of refluxing the dye started crystallizing and after 1 h of boiling the reaction mixture was cooled to room temperature. The dye was filtered with suction and rinsed with methanol.

Workup

  1. temperatureAfter a few minutes of refluxing the dye
  2. customstarted crystallizing and after 1 h
  3. filtrationThe dye was filtered with suction
  4. washrinsed with methanol

Sources & evidence

ORD record
ord-9cbfd77500d348baba10109dab3ba9ed
Source dataset
uspto-grants-1982_01
Patent number
US04311787

Reaction notes

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